BARREL 4F X-ray Spectrometer: Bremsstrahlung X-ray Spectrum Fast Time Resolution

BARREL's six-channel spectrometer provides 50 ms resolution measurements of Bremsstrahlung X-rays from precipitating electrons. The NASA mission launched over 50 stratospheric balloons from Antarctica and Sweden between 2013 and 2016 to study electron losses from Earth's Radiation Belts. Data collection was coordinated with the Van Allen Probes mission and other ground-based instruments.

Use Cases

• Analyze electron precipitation spatial scales based on the multi-balloon array described.
• Correlate X-ray spectra with in-situ plasma wave measurements based on the mission's coordination with Van Allen Probes.
• Study temporal variations of electron precipitation based on the fast 50 ms time resolution mentioned.
• Model Bremsstrahlung X-ray production based on the specified energy range from 0 MeV to 1.5 MeV.

Strengths

• Provides fast time resolution data at 50 ms intervals.
• Covers a nominal energy range from 0 MeV to 1.5 MeV across six channels.
• Data collection involved over 50 balloon launches across four campaigns.
• Coordinated measurements with the Van Allen Probes mission and other instruments.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to collection from specific Antarctic and Swedish sites.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measured by X-ray spectrometers carried on stratospheric balloons.

Time Range

Campaigns conducted in 2013, 2014, 2015, and 2016.

Freshness

Last updated 2026-03-13 03:32:28.186225; freshness should be verified.

Geography

Balloon launches from Halley Bay and SANAE IV in Antarctica, and Esrange Space Center in Kiruna, Sweden.